GET UNDERWAY AT FENWAY PARK. THERE WITH HOW YOU CAN HELP. REPORTER: A BUSY MORNING AT FENWAY PARK AS THE RED CROSS GETS READY FOR ITS ANNUAL BLOOD DRIVE. I'M HERE WITH KELLY OF THE RED CROSS. THANK YOU SO MUCH FOR BEING WITH US HERE. TELL US TODAY. IT STARTS AT 6:00 A.M. GOES UNTIL 1:00. WHY IS THIS SO IMPORTANT? >> WE CONSIDER THIS TO BE A DAY OF SERVICE. THIS IS SOMETHING THAT A LOT OF PEOPLE WANT TO DO SOMETHING MEANINGFUL IN REMEMBRANCE OF THE PEOPLE WHO WERE LOST ON 9/11. THIS IS A GREAT WAY TO DO IT. IT TAKES ABOUT AEN HOUR OF YOUR THE BRAD THAT YOU DONATE TODAY IS GOING TO BE GOING TO HOSPITAL PATIENTS. IT IS JUST REALLY SOMETHING THAT YOU CAN DO TO MAKE A DIFFERENCE. REPORTER: THIS HAS BEEN GOING ON SINCE TWOUTS. IT IS A TRADITION AT THIS POINT. >> ABSOLUTELY. THIS IS A BLOOD DRIVE THAT WE LOOK FORWARD TO EVERY YEAR. WE SEE SOME OF THE SAME DONORS AND GET NEW FACES EVERY YEAR. IT IS A PERFECT MIX. REPORTER: THANK YOU SO MUCH FOR TALKING WITH US ABOUT IT. IT STARTS AT 6:00 A.M.. GOES UNTIL 1:00. YOU CAN MAKE AN